5278007640 has 32 divisors (see below), whose sum is σ = 15834023280. Its totient is φ = 1407468672.

The previous prime is 5278007591. The next prime is 5278007681. The reversal of 5278007640 is 467008725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21991579 + ... + 21991818.

Almost surely, 2^5278007640 is an apocalyptic number.

It is an amenable number.

5278007640 is an abundant number, since it is smaller than the sum of its proper divisors (10556015640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5278007640 is a wasteful number, since it uses less digits than its factorization.

5278007640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43983411 (or 43983407 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 5278007640 is about 72649.8977287649. The cubic root of 5278007640 is about 1741.0984872325.

The spelling of 5278007640 in words is "five billion, two hundred seventy-eight million, seven thousand, six hundred forty".